Oh great game. In fact, the blog of Oscar Toledo (Nanochess) is a piece of art for all the retro gamers he he he. I remember found his blog some time ago and I thought his work was pretty cool. I think it's time to visit Nanochess again :)
Excellent video and post pal, as always :)
RE: Developer Finds and Updates Code From 1988 for Release on ColecoVision Console